OK. I read that cover to cover. I will test again. I do think one of the problems may have been caused by me first installing the Flatpak from Fedora Repo, then changing to Flathub repo. I am now wondering if the simplest thing to do (if I can suss how to do it) is to just:

1. SAFELY back up all TB data. 2. Uninstall TB 3. Install RPM version of TB 4. Import my data

If nothing else this will at least put my profile where TB expects it to be. (if I go to troubleshooting information, in Application Basics section it says "Profile Directory: (Local drive)" with an 'Open Directory' button that DOES NOT WORK, if I click on it nothing happens.)

I suspect running RPM version may make things easier and perhaps function better. Do you have any comments on that idea? And if it sounds wise to do, how can I safely back up my TB data before uninstalling the Flatpak? thanks

It's broken.

"If Edit > Find messages style search finds the message content you are looking for"

What does 'Find messages style search' mean?

I have a local folder which is included in global searches, the folder name is a domain name (lets call it domainxyz.com). I just searched for domainxyz in global search, zero results. Yet if i go to that folder, there are 7 emails in there which have that string in the email contents.

I am at my wits end now, I can not work like this, global search should be finding stuff anywhere, but it's not.

If anyone has ANY useful ideas to try and find out why, please shout. Otherwise I will VERY reluctantly have to leave TB behind and try Evolution Mail (which I detest, but search works).